Urea reacts with water to form A which will decompose to form B. B when passed through , deep blue colour solution C is formed. What is the formula of C from the following ?

Question

Canvas Classes · Accepted Answer

🧠 The "Aha!" Moment
This problem is a chemical relay race. Urea starts it, but the "deep blue" color at the finish line is a classic test for Copper ions using Ammonia.

🗺️ The Standard Approach
1. The Hydrolysis (Urea to A): Urea () reacts with water to form Ammonium Carbonate.
   
2. The Decomposition (A to B): Ammonium carbonate is unstable and decomposes, releasing Ammonia gas.
   
3. The Complexation (B to C): When  gas is passed into a solution of  ions, it forms a coordinate complex.

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